|
Spectrum combines sophisticated test facilities and
equipment with proven expertise in formulating and
manufacturing ceramic components. Design processing
for our structural ceramics includes SolidWorks, Pro/E
and AutoCad. We have the ability to produce complex
geometries via additional machining for ceramic body
types that can meet all your mechanical and electrical
product requirements.
Product Features
Processing Methods
- Pressing up to 3" diameter and 2-1/2" thickness fired
- Extrusion up to 2" diameter and 12" length fired
- Tape casting/lamination up to 1/4" thickness fired
- CNC machining of green or fired shapes
- Finishing methods include glazing, tumbling, plating
Materials
- Steatite - good electrical resistance, strength and temperature resistance; lower cost than alumina
- Cordierite - excellent resistance to thermal shock due to low coefficient of thermal expansion; similar strength and electrical resistance properties to steatite
- Alumina - most predominant structural ceramic material; higher wear resistance, corrosion resistance, strength and operating temperature than steatite or cordierite
Physical Properties
- High wear and corrosion resistance
- Temperature stability and strength
- Low thermal expansion rates
- Superior thermal shock resistance
- Tight tolerance designs
Applications
- Electronic/Telecommunications - insulators, waveguides, high voltage parts
- Chemical/ Fluid Handling - valves, high pressure seals
- Aerospace/Military - lightweight, wear resistant components
- Medical - inert, miniature components for implantable devices
- Industrial - tubes, rods, beads, bushings
Custom solutions available to meet a wide range of customer requirements
Performance Specifications
| Steatite |
| Density |
0.098 lbs/cu in. |
| Hardness |
7.5 Mohs’ Scale |
| Coefficient of Thermal Expansion |
8.4 x 10-6 per °C |
| Safe Operating Temperature |
1000°C |
| Cordierite |
| Density |
0.076 lbs/cu in. |
| Hardness |
7.5 Mohs’ Scale |
| Coefficient of Thermal Expansion |
2.9 x 10-6 per °C |
| Safe Operating Temperature |
1100°C |
| Alumina (96%) |
| Density |
0.134 lbs/cu in. |
| Hardness |
9.0 Mohs’ Scale |
| Coefficient of Thermal Expansion |
7.9 x 10-6 per °C |
| Safe Operating Temperature |
1550°C |
|
|
